Cataphor
指后照应词, 顺向照应词（内容由下文加以说明）
🗣️ 情景例句
Who knows?
谁知道？
I hope you change his decision.
我希望你改变他的决定。
That sounds very interesting. How long will it take you to collect enough money?
听起来倒是挺有趣的。你要花多长时间才能筹集到足够的资金呢？